android wifi 热点、socket通讯

WiFi管理工具类

package com.wyf.app.common;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.List;

import android.content.Context;
import android.net.DhcpInfo;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;

public class WifiManageUtils
{
    private static WifiManager wifiManager;
    private static WifiInfo wifiInfo;
    private static List<ScanResult> wifiScanlist;
    private static List<WifiConfiguration> wifiConfigurationlist;
    private static DhcpInfo wifiDhcpInfo;

    public WifiManageUtils(Context context)
    {
    // 取得WifiManager对象
    wifiManager = (WifiManager) context
        .getSystemService(Context.WIFI_SERVICE);
    }

    public WifiInfo getWifiConnectInfo()
    {
    wifiInfo = wifiManager.getConnectionInfo();
    return wifiInfo;
    }

    public List<ScanResult> getScanResult()
    {
    wifiScanlist = wifiManager.getScanResults();
    return wifiScanlist;
    }

    public List<WifiConfiguration> getConfiguration()
    {
    wifiConfigurationlist = wifiManager.getConfiguredNetworks();
    return wifiConfigurationlist;
    }

    public DhcpInfo getDhcpInfo()
    {
    wifiDhcpInfo = wifiManager.getDhcpInfo();
    return wifiDhcpInfo;
    }

    /**
     * 开启热点作为服务端的配置
     * 
     * @param ssid
     * @param passwd
     * @param type
     * @return
     */
    public WifiConfiguration getCustomeWifiConfiguration(String ssid,
        String passwd, int type)
    {
    WifiConfiguration config = new WifiConfiguration();
    config.allowedAuthAlgorithms.clear();
    config.allowedGroupCiphers.clear();
    config.allowedKeyManagement.clear();
    config.allowedPairwiseCiphers.clear();
    config.allowedProtocols.clear();
    config.SSID = ssid;
    if (type == 1) // NOPASS
    {
        config.wepKeys[0] = "";
        config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
        config.wepTxKeyIndex = 0;
    }
    if (type == 2) // WEP
    {
        config.hiddenSSID = true;
        config.wepKeys[0] = passwd;
        config.allowedAuthAlgorithms
            .set(WifiConfiguration.AuthAlgorithm.SHARED);
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);
        config.allowedGroupCiphers
            .set(WifiConfiguration.GroupCipher.WEP104);
        config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
        config.wepTxKeyIndex = 0;
    }
    if (type == 3) // WPA
    {
        config.preSharedKey = passwd;
        config.hiddenSSID = true;
        config.allowedAuthAlgorithms
            .set(WifiConfiguration.AuthAlgorithm.OPEN);
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
        config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
        config.allowedPairwiseCiphers
            .set(WifiConfiguration.PairwiseCipher.TKIP);
        // config.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
        config.allowedPairwiseCiphers
            .set(WifiConfiguration.PairwiseCipher.CCMP);
        config.status = WifiConfiguration.Status.ENABLED;
    }
    if (type == 4) // WPA2psk test
    {
        config.preSharedKey = passwd;
        config.hiddenSSID = true;

        config.status = WifiConfiguration.Status.ENABLED;
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
        config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
        config.allowedPairwiseCiphers
            .set(WifiConfiguration.PairwiseCipher.TKIP);
        config.allowedPairwiseCiphers
            .set(WifiConfiguration.PairwiseCipher.CCMP);
        config.allowedProtocols.set(WifiConfiguration.Protocol.RSN);

    }
    return config;

    }

    /**
     * 客户端添加配置，作为连接认证配置
     * ssid、passwd 配置前后必须加上双引号“
     * @param ssid
     * @param passwd
     * @param type
     * @return
     */
    public WifiConfiguration getCustomeWifiClientConfiguration(String ssid,
        String passwd, int type)
    {
    WifiConfiguration config = new WifiConfiguration();
    config.allowedAuthAlgorithms.clear();
    config.allowedGroupCiphers.clear();
    config.allowedKeyManagement.clear();
    config.allowedPairwiseCiphers.clear();
    config.allowedProtocols.clear();
    //双引号必须
    config.SSID = """ + ssid + """;
    if (type == 1) // WIFICIPHER_NOPASS
    {
        config.wepKeys[0] = "";
        config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
        config.wepTxKeyIndex = 0;
    }
    if (type == 2) // WIFICIPHER_WEP
    {
        config.hiddenSSID = true;
         config.wepKeys[0] = """ + passwd + """;
        config.allowedAuthAlgorithms
            .set(WifiConfiguration.AuthAlgorithm.SHARED);
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.WEP40);
        config.allowedGroupCiphers
            .set(WifiConfiguration.GroupCipher.WEP104);
        config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE);
        config.wepTxKeyIndex = 0;
    }
    if (type == 3) // WIFICIPHER_WPA
    {
        config.preSharedKey = """ + passwd + """;
        config.hiddenSSID = true;
        config.allowedAuthAlgorithms
            .set(WifiConfiguration.AuthAlgorithm.OPEN);
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
        config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
        config.allowedPairwiseCiphers
            .set(WifiConfiguration.PairwiseCipher.TKIP);
        // config.allowedProtocols.set(WifiConfiguration.Protocol.WPA);
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
        config.allowedPairwiseCiphers
            .set(WifiConfiguration.PairwiseCipher.CCMP);
        config.status = WifiConfiguration.Status.ENABLED;
    }
    if (type == 4) // WPA2psk test
    {
        config.preSharedKey = """ + passwd + """;
        config.hiddenSSID = true;

        config.status = WifiConfiguration.Status.ENABLED;
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.TKIP);
        config.allowedGroupCiphers.set(WifiConfiguration.GroupCipher.CCMP);
        config.allowedKeyManagement.set(WifiConfiguration.KeyMgmt.WPA_PSK);
        config.allowedPairwiseCiphers
            .set(WifiConfiguration.PairwiseCipher.TKIP);
        config.allowedPairwiseCiphers
            .set(WifiConfiguration.PairwiseCipher.CCMP);
        config.allowedProtocols.set(WifiConfiguration.Protocol.RSN);

    }
    return config;

    }

    public Boolean stratWifiAp(String ssid, String psd, int type)
    {
    Method method1 = null;
    try
    {
        method1 = wifiManager.getClass().getMethod("setWifiApEnabled",
            WifiConfiguration.class, boolean.class);
        WifiConfiguration netConfig = getCustomeWifiConfiguration(ssid,
            psd, type);

        method1.invoke(wifiManager, netConfig, true);
        return true;
    }
    catch (Exception e)
    {
        e.printStackTrace();
        return false;
    }
    }

    public void closeWifiAp()
    {
    if (isWifiApEnabled())
    {
        try
        {
        Method method = wifiManager.getClass().getMethod(
            "getWifiApConfiguration");
        method.setAccessible(true);

        WifiConfiguration config = (WifiConfiguration) method
            .invoke(wifiManager);

        Method method2 = wifiManager.getClass().getMethod(
            "setWifiApEnabled", WifiConfiguration.class,
            boolean.class);
        method2.invoke(wifiManager, config, false);
        }
        catch (NoSuchMethodException e)
        {
        e.printStackTrace();
        }
        catch (IllegalArgumentException e)
        {
        e.printStackTrace();
        }
        catch (IllegalAccessException e)
        {
        e.printStackTrace();
        }
        catch (InvocationTargetException e)
        {
        e.printStackTrace();
        }
    }
    }

    public boolean isWifiApEnabled()
    {
    try
    {
        Method method = wifiManager.getClass().getMethod("isWifiApEnabled");
        method.setAccessible(true);
        return (Boolean) method.invoke(wifiManager);

    }
    catch (NoSuchMethodException e)
    {
        e.printStackTrace();
    }
    catch (Exception e)
    {
        e.printStackTrace();
    }

    return false;
    }
}

开启热点服务端部分代码

    public void startWifiHot()
    {
    btnServer.setEnabled(false);
    if (wifiManager.isWifiEnabled())
    {
        wifiManager.setWifiEnabled(false);
    }

    Boolean b = wifimanageutils.stratWifiAp(mSSID, mPasswd,3);
    if (b)
    {
        serverThread = new WifiServerThread(context, testh);
        Toast.makeText(context, "server 端启动", 3000).show();
        serverThread.start();
    }
    else
    {
        btnServer.setEnabled(true);
        Toast.makeText(context, "server 端失败，请重试", 3000).show();
    }
    }

WifiServerThread服务端线程

public class WifiServerThread extends Thread
{
    public ServerSocket mserverSocket;
    public Socket socket;
    public Context context;
    public static final int SERVERPORT = 8191;
    public Boolean isrun = true;
    public Handler handler;

    public WifiServerThread(Context context, Handler handler)
    {
    this.context = context;
    this.handler = handler;
    }

    public void run()
    {
    try
    {
        mserverSocket = new ServerSocket(SERVERPORT);
        while (isrun)
        {
        socket = mserverSocket.accept();
        new Thread(new Runnable()
        {
            @Override
            public void run()
            {
            byte[] buffer = new byte[1024];
            int bytes;
            InputStream mmInStream = null;

            try
            {
                mmInStream = socket.getInputStream();
            }
            catch (IOException e1)
            {
                e1.printStackTrace();
            }
            System.out.println("server");

            try
            {
                InputStream in = socket.getInputStream();
                OutputStream os = socket.getOutputStream();

                byte[] data = new byte[1024];
                while (in.available() <= 0)
                ;// 同步

                int len = in.read(data);

                String[] str = new String(data, 0, len, "utf-8")
                    .split(";");

                String path = Environment
                    .getExternalStorageDirectory()
                    .getAbsolutePath()
                    + "/CHFS/000000000000" + "/";
                if (len != -1)
                {
                path += "socket_" + str[0];// str[0]是文件名加类型
                }
                handler.obtainMessage(10, (Object) str[0])
                    .sendToTarget();

                System.out.println(path);

                os.write("start".getBytes());

                os.flush();

                File file = new File(path);

                DataOutputStream out = new DataOutputStream(
                    new FileOutputStream(file));

                System.out.println("开始接收.....");
                int countSize = 0;

                while ((len = in.read(data)) != -1)
                {
                out.write(data, 0, len);
                countSize += len;
                }

                os.close();
                out.flush();
                out.close();
                in.close();
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }
            finally
            {
                try
                {
                socket.close();
                System.out.println("关闭....");
                }
                catch (Exception e)
                {
                e.printStackTrace();
                }
                handler.obtainMessage(10, (Object) "接受 完成")
                    .sendToTarget();
            }

            }
        }).start();
        }
        if (mserverSocket != null)
        {
        try
        {
            mserverSocket.close();
        }
        catch (IOException e)
        {
            e.printStackTrace();
        }
        }

    }
    catch (Exception e)
    {
        e.printStackTrace();
    }

    }
}

开启客户端部分代码

btnClient.setOnClickListener(new OnClickListener()
    {

        @Override
        public void onClick(View v)
        {
        WifiConfiguration netConfig = wifimanageutils
            .getCustomeWifiClientConfiguration(mSSID, mPasswd,3);

        int wcgID = wifiManager.addNetwork(netConfig);
        boolean b = wifiManager.enableNetwork(wcgID, true);
        
        Boolean iptoready = false;
        if (!b)
        {
            Toast.makeText(context, "wifi 连接配置不可用", 3000).show();
            return;
        }
        while (!iptoready)
        {
            try
            {
            // 为了避免程序一直while循环，让它睡个100毫秒在检测……
            Thread.currentThread();
            Thread.sleep(100);
            }
            catch (InterruptedException ie)
            {
            }

            DhcpInfo dhcp = new WifiManageUtils(context).getDhcpInfo();
            int ipInt = dhcp.gateway;
            if (ipInt != 0)
            {
            iptoready = true;
            }
        }
        wifiLock.acquire();
        clientThread = new WifiClientThread(context);
        clientThread.start();
        }
    });

WifiClientThread客户端线程

public class WifiClientThread extends Thread
{
    public Socket socket;
    public Context context;
    public Boolean isrun = true;
    public static final int SERVERPORT = 8191;

    public OutputStream os;
    public InputStream in;

    public WifiClientThread(Context context)
    {
    this.context = context;
    }

    public void run()
    {
    try
    {
        DhcpInfo dhcp = new WifiManageUtils(context).getDhcpInfo();
        int ipInt = dhcp.gateway;
        String serverip = String.valueOf(new StringBuilder()
            .append((ipInt & 0xff)).append('.').append((ipInt >> 8) & 0xff)
            .append('.').append((ipInt >> 16) & 0xff).append('.')
            .append(((ipInt >> 24) & 0xff)).toString()

        );
        socket = new Socket(serverip, SERVERPORT);

        new Thread(new Runnable()
        {

        @Override
        public void run()
        {
            if (socket == null)
            {
            return;
            }
            System.out.println("client connect");

            try
            {
            String path = Environment.getExternalStorageDirectory()
                .getAbsolutePath() + "/CHFS/000000000000";
            if (android.os.Build.MODEL.contains("8812"))
            {
                path += "/camera/" + "camera_temp_name.jpg";
            }
            else
            {
//                path += "/camera/" + "camera_temp_name.mp4";
                 path+="/ARChon-v1.1-x86_64.zip";
            }
            DataInputStream read = new DataInputStream(
                new FileInputStream(new File(path)));
            System.out.println(read.available());
            String fileName = path.substring(path.lastIndexOf("/") + 1);// 获得文件名加类型

            System.out.println(fileName);

            os = socket.getOutputStream();
            in = socket.getInputStream();
            os.write((fileName + ";" + read.available())
                .getBytes("utf-8"));// 将文件名和文件大小传给接收端
            os.flush();
            byte[] data = new byte[1024];

            int len = in.read(data);

            String start = new String(data, 0, len);

            int sendCountLen = 0;

            if (start.equals("start"))
            {

                while ((len = read.read(data)) != -1)
                {
                os.write(data, 0, len);
                sendCountLen += len;
                }
                os.flush();
                os.close();
                read.close();
            }

            }
            catch (Exception e)
            {

            e.printStackTrace();
            }
            finally
            {

            try
            {
                socket.close();
            }
            catch (IOException e)
            {
                e.printStackTrace();
            }

            }

        }
        }).start();
    }
    catch (IOException e)
    // catch (Exception e)
    {
        e.printStackTrace();
    }
    }

}